Can i fight my own case in court, if i don't have a money to pay to a lawyer?

If you don't have money to pay for a lawyer then the court will assign you a lawyer without taking any charges or you can fight it by yourself, if you have a law degree. If you don't have any law degree and no one is willing to accept your case, then you can also fight the case by yourself, it is your right. There are also some circumstances where you are allowed to do that, which is based on the law of your country or state.